Question

2
A point charge q,- 1.0PC is held fixed at origin. A second
point charge 9 - - 2.0 C and a mass 10-4 Kg is
placed on the x-axis, 1.0 m from the origin. The second
point charge is released from rest. Its speed when it is
0.5 m from the origin is
19.8 m/s
2 10.9 m/s
37 18.9 m/s 14 29.4 m/s
​

Answer 1

$\huge \mathfrak{question}$

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Give reasons for the following:-

1. In the d-block Elements the size is on almost comparable, that is, there is no significant change in the size.

2. In group-13, Boron to Aluminium size increases but from Aluminium to Gallium size decreases and again from Gallium to Indium size increases but from Indium to Thallium, there is very slight increase in size.

3. In the f-block, left to right size decreases very sharply.

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